A Key Lock is a mechanical device used to secure doors, cabinets, or safes. It operates by using a specific key that fits into the lock, allowing it to turn and engage or disengage the locking mechanism. Key locks are commonly found in residential and commercial settings, providing a straightforward way to control access to secured areas. These locks come in various types, including pin tumbler locks, wafer locks, and deadbolts. Each type has its own mechanism and level of security. Key locks are widely used due to their simplicity and effectiveness in protecting property and belongings.